Field-cultivator



(No Model.)

G. GORDES.

. FIELD GULTIVATOR. No. 471,209. Patented Mar. 22, 1892.

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UNITED STATES GEORGE CORDES, OF BARABOO, W'ISCONSIN.

FIELD-CULTIVATOR.

SPECIFICATION forming part of Letters Patent No. 471,209, dated March22, 1892.

Application filed November 6, 1891. Serial No. 411,056. (No model.)

To all whom-it may concern:

Be it known that I, GEORGE CoRnEs, a citizen of the United States,residing at Baraboo, in the county of Sauk and State of Wisconsin, haveinvented certain new and useful Improvements in Field-Cultivators; and Ido declare the following to be a full, clear, and exact description ofthe invention, such as will enable others skilled in the art to which itappertains to make and .use the same.

This invention relates to improvements in field cultivators or harrows;and the novelty will be fully understood from the following descriptionand claim, when taken in connection with the annexed drawings, in whichFigure 1 is a plan View of my improved harrow or cultivator with thedraft-beam partly broken away. Fig. 2 is an end elevation, partly insection and partly broken away. Fig. 3 is a diametrical section of twoof the pulverizing-disks with the shafts in position, and Fig. 4 is aperspective View of one of the disks removed.

Referring by letter to said drawings, A indicates the frame, which maybe formed of wood, metal, or other suitable material, and is preferablyof a rectangular form. This frame may be provided with a suitable seatfor the driver, and is also provided with a hinged or pivoted beam 13for the attachment of the draft-animals when two are employed, or a pairof shafts may be used with asingle horse.

0 indicates a beam or bar arranged centrally of the main frame and isdesigned to serve as a bearing for the cutter-shafts.

D indicates the shafts, which may be composed of stout rods and hear attheir outer ends in the lateral bars a of the main frame and are alsosustained in the center bar 0, as shown, suitable bearings beingprovided for the purpose. These rods or shafts are designed to bereadily removable from the bearings and are prevented from unduelongitudinal play by a head I) at one end and a nut c at the oppositeend, although it is obvious that other means might be employed for thispurpose, and it is also obvious that instead of having these shafts orrods extend the entire width of the frame they may be of such a lengthas to extend from the central cross-bar to the lateral beams or barsonly. These rods or shafts D are threaded, as shown at (1,6, and f, toreceive lever-nuts E and to also rc= ceive the nuts 0.

F indicates sleeves, which are bored longitudinally to receive theshafts or rods D and are of rectangular or of other angular form inoutline.

G indicates the cutting or pulverizin g disks. These disks are of apeculiar construction and are of approximately saucer shape. Said disksmay be cast or formed from stout sheet metal or other suitable material,having a central flat portion g, from one side of which a centralrectangular sleeve or collar H proj ects, and from the central flatportion, which is of circular form in outline, flare the cutting orpulverizing blades h. These disks are placed upon the sleeve F, which isin turn placed upon the shaft D, and are arranged with their concavitiesfacing the same direction, so that the free edge of the rectangularsleeve H may abut against the outer sides of the flat portion g of thenext disk and determine the distance at which the disks are to bearranged from each other upon the sleeves F. These pulverizing-disks arearranged upon the shafts so that the disks on one shaft will pass thespaces formed by the disks on the opposite shaft, and vice versa. Thedisks and also thesleeve are stayed upon the shafts at one end by meansof nuts I and are adjustably secured at their opposite ends by means ofwashers 7c and the threaded levernuts E. It will thus be seen thatshould any one of the disks become impaired or injured it may be readilyremoved and replaced by another by simply freeing the shafts from thehearings in the main frame and manipulating the lever nuts so as to letoff the desired disk and then sliding the cutters or disks back upon thesleeves and adjusting the latter upon the shafts.

Having described my invention, what I claim is In a cultivator orearthpnlverizer, the com bination,with the pulverizing-disks ofapproximately saucer shape, having the rectangular collars projecting ontheir concaved side from the center thereof, of the rectangular sleevereceiving said disks, with the collar of one disk bearing against theouter side of another disk, the shaft receiving said sleeve, andsuitable means for reniovably and adj ustably securing the sleeves anddisks to the shafts, substantially as specified. [o

In testimony whereof I affix my signature in presence of two Witnesses.

GEORGE (JORDES. Vitnesses:

HERMAN GROTOPHORST, J AMES A. BUcKLEY.

